Plow-clevis.



No. 877,413. P-ATENTED JAN. 21, 1908.

M. L. DIGBYi PLOW GLEVIS.

APPLICATION IILED AUG. 19, 1907.

I \"IIM v 9 21 awwewkoc wi/tmeooed I M LT D1 [3B Y i 1% ,4 6 WWW MARTINL. DIGBY, OF RISING STAR, TEXAS.

PLOW-CLEVIS.

Specification of Letters Patent.

Patented Jan. 21, 1908.

Application filed August 19, 1907. Serial No. 389.211.

To all whom it may concern:

Be it known that I, ll'IARTIN Tl. DIGBY, a citizen of the United States,residing at Rising Star, in the county of Eastland and State of Texas,have invented certain new and useful Improvements in a Plow-Clovis and Ido declare the following to a be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in plow clevises.

The object of the invention is toprovide a clevis for plows which isadapted to be adjusted laterally and vertically to regulate the cut ofthe plow share.

A further object is to provide a plow clevis of this character whichwill be simple, strong and durable in construction, efficient inoperation and well adapted to the purpose for which it is designed.

IVith these objects in view, the invention consists of certain novelfeatures of construction, combination and arrangement of parts as willbe more fully described and particularly pointed out in the appendedclaims.

In the accompanying drawings, Figure 1 is a plan view of a clevisconstructed in accordance with the invention; Fig. 2 is a side view;Fig. 3 is a central vertical longitudinal sectional view, and Fig. 4 isa detailed hori zontal sectional view of the same.

Referring more particularly to the drawings, 1 denotes the clevis, whichconsists of a body portion in the form of a horizontallydisposed,'substantially rectangular frame, 2, comprising a front bar, 3,rear bar, 4, intermediate bar, 5, and endbars, 6, which connect the endsof said front, rear and intermediate bars, as shown. To the rear bar, 1,is connected a pair of integrally formed attaching plates, 7, which arespaced apart and project rearwardly from the bar 4. The plates 7 areadapted to be engaged with the opposite sides of the plow beam, and tobe bolted or otherwise connected thereto. In the front bar 3 is formed aseries of vertically disposed apertures, S, the purpose of which willhereinafter appear.

Slidably mounted on the apertured bar 3 of the frame is a sleeve 9,having on its opposite ends radially projecting annular flanges, 10.

On the sleeve 9 is secured a circular adjusting plate, 12, on the inneredge of which is formed a rearwardly projecting guide lug, 13, havingformed therein a transversely disposed passage or opening, 14, which isslidably engaged with the intermediate bar, 5, of the frame, 2. Theinner end of the lug 13 bears on and slides against the inner side ofthe rear bar 4 of the frame. By thus connecting the plate 12 with thesleeve 9 and with the inter-v mediate bar 5, said plate may be adjustedlaterally in either direction on the frame, 2.

The sleeve 9 and plate 12 are held in their adjusted position by meansof a lockingpin, 15, which is adapted to be inserted through a hole, 16,formed in the upper side or edge of the plate, 12, and into one of aseries of holes. or openings formed in the front bar 3 of the frame.

On the sleeve 9 between the plate 12 and the flanges 10 is looselymounted a pair of draft rings, 17, which are formed on one edge withradially projecting oppositely disposed extensions 18, connected toether at their outer ends by a spacing bloc 19, in which is swiveled theinner end of a draft hook, 20. In the rings 17 adjacent to the inner endof the extension 18 are formed alined openings 21, which are adapted tobe brought into alinement with one of an annular series of openings, orholes, 22, formed in the circular adjusting plate, 12, and through saidalined holes in the rings 17 and plate 12 is adapted to be inserted alocking pin, 23, which holds or looks. the draft rings and hook 20 inany desired position, thus providing means whereby the plow point may bedirected into the ground to a greater or less degree, for the forming offurrows of different depths.

By providing'for the lateral adjustment of the plate 12 and the draftrings as herein before described, more or less land may be given to theplow share, thus providing for forming furrows of different width.

A clevis constructed. as herein shown and described may be quickly andeasily adjusted to vary the position of the low oint and share to causethe same to orrn rrows of different width and depth.

Having thus fully described my invention, what I claim as new and desireto secure by Letters-Patent, is:

1. A clevis comprising a frame, a sleeve slidably mounted on said frame,draft rings on said sleeve and means to adjustably connect the latter onsaid frame, whereby the action of the plow may be varied, substantiallyas described.

2. Aclevis comprising a substantially rectangular frame, means to attachthe same to the end of a plow beam, a sleeve slidably mounted on saidframe, an adjustingbar connected to said sleeve and adapted to slidablyengage one of the bars of said frame, means to lock said plate andsleeve in their adjusted positions, clamping rings loosely mounted toturn on said sleeve, means to lock said rings in their adjustedposition, and

' plates formed on said rear bar and adapted to be secured to a plowbeam, a sleeve slidably mounted on said front apertured bar of.

the frame, an adjusting plate mounted on said sleeve, an apertured lugprojecting from said plate and adapted to slidably engage theintermediate bar of said frame, means to lock said sleeve and plate intheir adjusted position on the bars of said frame, draft rings looselymounted to turn on said sleeve, means to lock said rings in adjustedposition on said sleeve, and a draft hook connected to said rings,substantially as described.

4. A plow clevis comprising a rectangular frame consisting of anapertured front bar, a rear bar, an intermediate bar and end barsconnecting said front, rear and intermediate bars, means to attach saidframe with the plow beam, an apertured sleeve slidably mounted on saidsleeve, said plate having formed therein an annular. series oftransversely disposed holes, a rearwardly projecting apertured lug onsaid plate adapted to engage the intermediate bar of said frame,radially projecting annular flanges formed on the outer ends of saidsleeve, draft rings loosely mounted on the sleeve to turn between saidflanges and said adjusting plate, said rin s having formed thereinalined apertures adapted to be brought into alinement with the aperturesin said plate, a'locking pin adapted to be inserted through a verticalaperture formed in said adjusting plate and through one of the series ofapertures formed in the front bar of the frame, whereby said adjustingplate and draft rings are held in their lateral adjusted positions, anda locking pin adapted to be inserted through the alined openings in saiddraft rings and adjusting plate to lock said rings in their adjustedpositions, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

MARTIN L. DIGBY.

Witnesses:

WILIEs Q. SPEER, B. FRANK LovETT.

